Spring wagon-bolster.



PATENTED A UG. 18, 1908.

J. L. ;& A. HAGEL. SPRING WAGON BOLSTER.

Z 44; 2 T y m @14 m WJWW E m @O APPLLGATION FILED OCT. 25, 1907.

J. L. & A. HAGEL. SPRING WAGON BOLSTER.

APPLICATION FILED OCT. 25, 1907.

Izyflr P ATEN'TED AUG. 18, ,1908- z SHEIETS-SHEET z.

UNITED STATES PATENT OFFICE JOHN LINIUS HAGEL AND AUGUST 'HAGEL, or rnovgnirucn, MINNESOTA.

SPRING wAG'oiv-BoLs'rER.

' Specification of Letters Patent.

Patented Aug. 18, 1908.

To all whom it may concern:

Be it knownthat we, JOHN LINIUS HAGEL and AUGUST HAGEL, citizens of the United States, residing at Providence, in the county of Lac qui Parle and State of Minnesota, have invented certain new and useful Improvements in Spring Wagon-Bolsters; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled the art to which it :appertains to make and use the same.

Our invention has for its object to )rovide an im roved spring wagon bolster w ich is, nevert eless, adapted for general use on various kinds of vehicles.

To the above ends the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

This improved bolsteris made up of what, for distinction, may be designated as a lower or primary bolster and an upper or secondary b0 ster, and a novel arrangement of springs whereby the latter is supported from. the former. In some instances, usually in rear bolsters, the primary and secondary bolsters are connected by equalizing bars of novel construction and arrangement which'hold the two bolsters always parallel to each other, and this constitutes another feature of our invention.

The invention also involves other novel but minor features of construction,- all of which will be hereinafter describedand devertical longitudinal section, taken through 1}h6 bolster approximately on'the line a) a) of Fig.3. Fig. 3 is a'horizontal section taken approximately on the line 11: 11;? of Fig. 1.

F1g. 4 is an end elevation of the bolster, with some parts broken away; and Fig. 5 is av m :0 of Fig. 1.

The so-called primary or lower bolster is made up of a pair of angle iron bars 1, the

transverse vertical section taken on the line 1 horizontal flanges of which 'are turned in ward and are rigidly secured, preferably to tie plates 2, while the vertic'alflanges thereof are. set outward or away from each other. The secondary a pair of similar angle iron bars-3, the'hori; zontal flanges of which are turned outward and the vertical flanges of which are set.

inward, approximately in vertical planes of the inner edgesof the horizontal 1n-turned flanges of the lower angle bars 1. Near their or upper bolster is made up of outer ends, these an le bars 3 are rigidly $6 2 cured togetherby sp it and out-turned lower end portions 4 of tubular metal posts 5. Meta rigidly secured at their upper'endsto the braces 6 that arev riveted or otherwise outer sides of-the hollow posts 5 are con.

nected at their lower ends to the outer-ends of the angle bars- 3, preferably by nutted bolts 7 that further assist in rigidly securing I together the outer ends of the'said angle bars The secondary or upper bolster is sup-1 ported from the up er or primary bolster by a pair ofdouble e iptica springs, each 'of which s rings is made up of a pair of semi,-

elli tica springs "8, intermediately secured bac to back, as best shown in Fig. 1. The upper semi-elliptical springs G, at one end, are connected by bolts 9 and 12'to brackets 10, rigidl secured to the overlying horizontal flanges oi the correspondin upper an arerigidly secured to the respective angle of said upper springs 8 against displacement. The lower elliptical springs 8 are connected-,at:

1e bars 3, and at their other ends t ey work s dablyiagainst the base flanges of brackets 11 that one end, by bolts 13 to brackets 14--thatare rigidly secured to the underlying lower angle; bars 1 and the other ends of said'springs work slidably against the base ofbrackets i vertical flanges of the brackets 15, to assist in holding the free ends of the lower springs 8 against displacement. By reference to 3 it will be noted that one of the lower semi-elliptical sprin s 8 is ivoted at one side of the center (ii the b ster, While the other lower semi-elliptical spring is pivoted at the other side of the bolsteri statement is true in respect to the pivotal con nection of the up or semi-elliptical s rings to the upper angle ars 3. This equa iz'es the endwise thrust due to friction on the u per and lower bolsters under compression 0 the springs.

With the. arrangement above described, the springs keep compressed until the angle bars of the upper and lower bolsters are forced into the saln'e'or approximatelyilie same vertical. space. This is made possible by the reverse arrangements of the upper and lower angle bars, so that their vertical flanges may overlap when the springs are compressed. This construction, as is evident, gives a com .lete spring bolster that occupies but very ittle vertical space and, hence, does not necessitate the elevation of the wagon box or the supporting thereof in a position objectionably high above the axles.

in Figs. 4 and 5, the s ring bolster is shown ipported on an fax e 18 and connected etc by nutted bolts 19 passed through J. said'axle and through the tie plates 2.

The tubular posts serve also as sockets into which wooden posts or extensions may be inserted to increase the height of the holster osts as re uired in a ood man instances. a

The wagon box will, of course, be supported. directly upon the an le bars 3 of the'upper or secondary bolster eld between the posts These posts 5, it is therefore evident, do not tend. to move or slide-in respect to the box and, hence do notwear the box.

The bolster described is substantially the form it will usually be used at the front of a 50 wagon box. As already indicated, the bols-ter used at the rear of the wagon box is provided with an equalizer. This equalizer, as illustrated in the drawings and as preferably constructed, comprises a air of transversel .55

crossed metal bars 20 t at are intermediately connected for pivotaland limited sliding inovementsby a headed stud 21 secured to one of said bars and working in a slot 22 in the other bar. To reduce friction, a small roller 23 is shown as placed on the stud 21. These two equalizing bars are placed in the space between the front and rear angle bars of the primary and secondary bolster. The

The same lower ends of said equalizing bars are connected to the lower ends of short links 24, the upper ends of which are ivotally connected at 25 to rip-turned, inwardly and down-turned bent portions 26 of the lower an le bars 1. The upper ends of said e ualizing ars 20 are pivotally connected by t 1e intermediate portion of the bolts 9 and 12 to the Vertical flanges otthe angle bars 3 of the upper or secondary bolster.

As is usual, crossed equalizing bars 20 will hold the bars of the u per and lower bolsters always parallel to eacli other but will permit the free vertical movements ofthe one in respect to. the other.

What we claim is:

1. The combination. with upper and lower irons having their vertical flanges reversely disposed so that they are adapted to overlap, of double semi-elliptical springs interposed between the horizontal flanges of said angle irons and yieldingly supporting said up or bolster from said lower bolster, substantuflly as. described. I 1

The combination with upper and lower as g bolsters, formed from pairs of angle irons having their vertical flanges reversel disposed so that they are adapted to over ap, of

a pair of double semi-elliptical sprin s inter posed between the vertically alined orizontal flanges of the angle irons of said upper and lower bolsters and yieldingly supporting said upper bolster from. said lower bolster, sub

stantially as described.

4-. The combination with a lower bolster made up of .a pair of angle bars 1, having their flanges set outward, of an n per bolster flanges set inward, of springs interposed between the overlying horizontal flanges of said upper anglebars 3, and the underlying horizontal flanges of said lower angle bars 1, substantially as described.

5. The combination with a lower bolster made up of angle bars 1 having their vertical flanges set outward, of an upper bolster made up of angle bars 3 having their vertical flanges set inward, double semi-elli tical springs 1nterposed between the over ying horizontal derlying horizontal flanges of said lower angle bars 1, and end osts rigidlys'ecured at their lower ends to t e end portions of said upper angle bars 3, substantially as de-' scribed.

'120 flanges of said upper angle bars 3 and the un- 1 6. The combination with upper and lower bolsters, each made up of a pair of laterally s aced bars, of springs interposed between tiie Vertically alined bars of said upper and lower bolsters, and a pair of transversely crossed interinediately pivoted equalizing 1e-.

vers, located between the laterally spaced bars of said upper and lower bolsters with their upper ends connected to said upper bolster SLDC with their lower ends connected to said lower bolster, substantially as described.

In testimony whereof We afiix our signatures in presence of two witnesses.

JOHN LINIUS HAGEL. AUGUST HAGEL.

Witnesses .as to John Linius Hagel;

N. F. SODERBERG, ELOF NELSON. Witnesses as to August Hagel:

MALI'E HoEL, H D. KILGORE. 

